IMPROP'ERLY, adverb Not fitly; in a manner not suited to the end; in a manner not suited to the company, time, place and circumstances; unsuitably; incongruously. 1. In a manner not according with established usages; inaccurately; ungrammatically; as, to speak or write improperly
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI